Improvement in devices for forming the eyes of bed-springs



UNITED STATES PATENT OEEIcE.

N. B. WHITE, OF SOUTH DEDHAM, MASSAOHUSETTS, ASSIGNOB TO HIMSELF ANDHENRY B. BAKER, OF SAME PLACE.

IMPROVEMENT IN DEVICES FOR FORMING THE EYES 0F BED-SPRINGS.

Specification forming part of Letters Patent No. 59,145, dated October'23, 1866.

.To all whom it may concern:

Be it known that I, NELSON B. VHITE, of South Dedham, in the county ot'Norfolk and State of Massachusetts, have invented a new and usefulMachine for Forming the Slat-Holders or Eyes of Bedstead-S prin gs; anddo hereby declare the same to be fully described in the followingspecification, and represented in the accompanying drawings, of which-Figure l is a top view; Fig. 2, a side elevation of a bedstead-spring,with its eye or slatholder as formed by the aid of my invention, suchspring being essentially the same as that described in Letters Patent ofthe United States No. 51,516, dated December 12, 1865, and granted to D.and lV. Manuel. Fig. 3 is a top view, and Fig. 4 a longitudinal sectionof the machine. Fig. 5 is an inner-side view of its larger plate; Fig.6, an inner-side view of its lesser plate or jaw.

In Figs. l and 2 the body of the spring A is shown as conoidal in form,or, in other words, is a conoidal spiral, terminating at its apex in astraight extension, a., and at its base in a Slat-holder, B, eye, orprolongation, to receive the bedstead-slat, and for fixing the springthereto.

The machine, as exhibited in the drawings, substantially consists of twoplates or jaws, C D, a pin or stud, E, and two shoulders, F G, arrangedas therein represented.

The stud E extends from the inner side of the plate C, and into acorresponding hole, a, made in the plate D. The said plate D projectsbeyond the plate O in manner as shown in Figs. 3 and 4, and has twoshoulders, F and G, formed upon it at its opposite edges, in manner asexhibited in Fig. 3.

Another stud, b,-also extends from the plate G into a hole, d, in theplate D, the purpose of such stud and hole being to aid in keeping thetwo plates in their proper positions with respectto each other.

In employing the machine for the purpose for which it is designed thetwo plates O D are to be placed between the jaws of a vise, or they mayhave applied to them other means of clamping them upon the wire of thespring when placed between them.

The base coil of the spring, as above mentioned, prior to the formationof its slat-holding eye, is to be inserted between the two plates C D,and they are to be clamped firmly upon it. This having been done, thatportion of the wire which is to compose the eye or the adjacent edge ofthe plate D, and toward v its opposite edge at the shoulder F. Next, thewire is to be bent against the shoulder F, and around the next adjacentedge ot' the plate D, and over and down, in manner` as shown in Fig. 2.

This completes the eye as generally made; but in order that the point orend of the wire may not catch upon and scratch the woodof the slat, Iform in the lower plate a recess, e, upon which I lay the part f of theeye, and, by means of a hammer struck upon the said part f, I bend it alittle into the recess, thus causing the bearing of the part f on theslat to be about at the middle of the said part f.

` After the eye may have been completed it may readily be drawn oii' theplate I) by -sliding it on the said plate in a direction away from thetwo shoulders thereof.

To facilitate the bending of the part f around the edge of the plate D atubular rod, bar, or lever may be employed, the part f being inserted inthe extremity of the bore ot' the tube or lever. Such tube will serve asa handle and a means of readily bending the part f about the said edge.The front end of the plate D is recessed, as shown at h, in order toenable the lever or tube to turn the part j' down upon the plate andinto its requi-v site position.

The machine above described, for forming or aiding in forming theslats-holders or eyes of the bedstead-springs, above mentioned, is ofmilch advantage and-operates with great success.

I claim- I. The combination of the two plates or jaws O D, the stud E,and the shoulder G, arranged substantially as described.

2. The combination of the two plates or j aws O D, the stud E, theshoulder G, and the shoulder F, arranged substantially as specified.

3. The combination of the recess 71J with the shoulders F and G, and thestud E, applied to the two plates U D, as specified.

4. The combination of the plate D with the bending-recess c, arranged init, as and for the purpose specified.

N. B. WHITE.

Witnesses:

R. H. EDDY, GEORGE ANDREWS.

